Marcel van Espen, over at the Dr Flex and Dr LiveCycle blog, explains how you can create a LiveCycle process to access custom Office properties. His blog post also includes a useful example.

“Within LiveCycle Workbench ES, one of the services in the common category that you can use is ‘Export XMP’. This service will extract all the available metadata from a PDF document. If you have converted a MS-Office document to a PDF document, you will be surprised what metadata is also converted. All these properties now become accessible.”